One of my nieces, a member of the Ilo Peru Stake, will be entering the MTC in Lima, Peru in early June, 2018 (about four weeks from now). We will be helping to pay some of her mission costs. We live in the USA. I went to check if the online donation system could handle this scenario, and was told that the ward unit number was either invalid or out of the country (the latter, of course). I would prefer to send the money through the Church's accounting systems, if possible. My alternative (it seems) is to wire money down to one of her less active (and less trustworthy) relatives for them to give it to the bishop of the ward down there.